tim and christine ruggiero sold their ranch in decatur, texas, and moved away. they have also resolved matters with aruba petroleum. as for the problems in dimock, pennsylvania, when cabot oil and gas stopped supplying bottled water in late 2011, the environmental protection agency stepped in. the e.p.a. is supplying replacement water to some residents and testing well water in 60 homes. the e.p.a. also plans to propose new rules for shale gas extraction, which, by 2012, accounted for 30% of our natural gas supply. [ticking] coming up, maverick biologist j. craig venter on dna. >> dna is the software of life and the key to evolution of life on this planet, and now the key to the future of life on this planet is understanding how to write that software. >> designing life, when 60 minutes on cnbc continues. [ticking] what does an apron have to do with car insurance? every time you tie on an apron, you make progress. and we like that. because progress is what we make, too. ♪he cadillac summer collection is here. ♪ during the cadillac summer's best event, lease this all new 2014 cts for around $459 a month or purchase with 0% apr and make this the summer of style. [ticking]